Freezer for mechanically operated refrigerating units



Sept. 25, 1934. F. SCHALJO ET AL 1,974,512

FREEZER FOR MECHANICALLY OPERATED REFRIGERATING UNITS Filed Nov. 8,19:52 4 Sheets-Sheet 1 I Inventors r]. Mailer F. SchaZj R fl Home ySept. 25, 1934;

F. SCHALJO ET AL FREEZER FOR MECHANICALLY OPERATED REFRIGERATING UNITSFiled Nov. 8, 1932 4 Sheets-Sheet 2 Inventor;

J. Miller 7 SchaZ 'o flltorney Sept. 25, 1934. F, SCHALJO ET AL FREEZERFOR MECHANICALLY OPERATED REFRIGERATING UNITS Filed Nov. 8, 1932 4Sheets-Sheet 3 5 mwR CIT. zil l r FL SchaQ' Sept. 25, 1934. F. SCHALJOET AL FREEZER FOR MECHANICALLY OPERATED REFRIGERATING UNITS Filed Nov.8, 1932 4 Sheets-Sheet 4 Invenlonr 2'7. Miller 7 Schag'o Patented Sept.25, 1934 UNITED STATES PATENT OFFICE FREEZER FOB MECHANICALLY OPERATEBEFRIGERATING UNITS The present invention relates to improvements inrefrigeration and more particularly to the formation of ice creams andicesfor table use in a domestic electrically or other form ofmechanically operated refrigerating unit.

An important object of the invention resides in the provision of aso-called ice cream freezer to cooperate with an electrically or otherform of mechanically operated domestic refrigerating units whereby uponinsertion of the freezer within the refrigerating compartment, aconnection is made between a motor and the freezer for operatingstirring elements in the freezer.

Another very important object of the invention resides in the provisionof an ice cream freezer of this nature which is simple in itsconstruction, inexpensive to manufacture, thoroughly eihcient andreliable in use, easy to manipulate, compact and convenient in itsarrangement of parts, thoroughly efficient and reliable in use andoperation and otherwise well adapted to the purpose for which it isdesigned.

With the above and numerous other objects in view as will appear as thedescription proceeds, the invention consists in. certain novel featuresof a construction, and in the combination and arrangement of parts aswill be hereinafter more fully described and claimed.

In the drawings:

Figure 1 is a front elevation of the apparatus embog the features of ourinvention showing the same installed in a fr e compartment of arefrigerating unit,

Figure 2 is a vertical longitudinal section through the compartmentshowing the apparatus in side elevation.

Figure 3 is a detail vertical section through the gearing.

Figure 4 is a vertical section shafting from the electric motor.

Figure 5 is a vertical longitudinal section through the freezer.

Figure 6 is a view taken on the line 6-8 of Figure 2 looking downwardly.

Figure '7 is a view taken on the line '17 of Figure 2 looking in thedirection of the arrow, showing the freezer casing removed.

Figure 8 is a similar view with the casing in place on the cover.

Figure 9 is a detail view of another cover.

Figure 10 is an end elevation of the stirrer.

Figure 11 is a perspective view of the stirrer shaft.

Figure 12 is a detail transverse section through the stirrer, and

through the Figure 13 is a sectional View taken substantially on theline 1313 of Figure 2.

Referring to the drawings in detail it will be seen that the numeral 5denotes a. refrigerating element such as is used in electric, gas, andlike mechanically operated domestic refrigerators and includes thefreezing compartment 6. Numeral 7 denotes a rear wall of therefrigerator. The refrigerator is provided with the lower compartment 6and an upper compartment 6a, the'ceiling of the lower compartment 6being denoted by the numeral 8. In the present instance there will bearranged in the upper compartment 6:; the usual motor and compressor,and also, in the present instance there will be arranged in the uppercompartment 6a a motor 9 mounted on brackets 10 rlsing from the ceiling8. A bearing 11 is mounted in an opening in the ceiling to dependdownwardly therefrom and has a packing box structure 12 associatedtherewith. A shaft 14 is journalled through the bearing and coupled asat 15 with the armature shaft 16 of the electric motor 9. Numeral 17denotes a bearing bracket secured on the wall 7 and projecting forwardlytherefrom and terminating in a hearing 18 through which the shaft 14 isjournalled. A beveled pinion 19 is mounted on the bottom end of theshaft 14 and meshes with a beveled gear 20' on a shaft 20 which ishorizontally disposed and journalled through a bearing 22 on an angularbracket 23 secured on the wall 7. A socket head 24 is fixed to the innerend of the shaft and has diagonal slots 25 in the sides thereof leadingrearwardly from the forward edge thereof. Spring arms 26 are secured asat 27 to a block 28 which has mounted therein .a bearing 29 throughwhich said shaft 14 is journalled. This block is supported by a bracketstructure 30 fixed to the wall 'I. These spring arms 26 projectforwardly along side of each other and have a bolt 31 connectingintermediate portions thereof adjacent clip jaw terminals 32.

Numeral 33 denotes a cylindrical casing having fixed thereto asupporting structure 34 adapted to rest on the bottom of the compartment6. Numeral 35 denotes the outer end of the cylindrical casing which hasa pet cook 36 mounted therein and a ring 3'7 movably engaged therewithby a bracket 38. The inner end of the casing 33 is closed by a cap 39held in place by bolts I and nuts 40.

threadedly engaged in a central opening provided in the cap 39. Agitatorshaft 44 is journalled through the center'of the recess disk 43. A disk45 isflxed to the shaft 44 and a block 46 is disposed about the shaft 44to extend into the recess disk 43 and has a recess to accommodate thedisk 45. A cap 47 is threaded on the block 46 to hold packing materialin a recess in the block as indicated at 50 to be disposed about theagitator shaft 44. The inner end of the agitator shaft 44 is pointed toextend in a recess in a block 51 mounted on the center of the irmer'face of the end 35. Within the casing there is mounted on the shaft 44 aplurality of agitator blades 52 which extend longitudinally thereof andare twisted so that the forward edges are at angles of forty-fivedegrees with respect to the rear edge and these blades are transverselyslotted as indicated at 53. The rear end of the shaft 44 has a cross pin54 mounted therein so that this rear end may" be inserted into thesocket head withcthe pins in the notches thereof to be rotated by thegearing, shafting and electric motor previously described in detaii. Inorder to hold the agitating shaft in operative connection with theseoperating parts there is mounted on the cap 39 a head 55 with which theclip jaw terminals 32 engage and the tension of these jaws may be variedby the manipulation of the bolt 31.

When the proper ingredients have been placed in'the casing 33 theagitator mechanism is inserted therein and the head or cap 3) secured inplace as previously indicated. Then the freezer is inserted in thecompartment 6 to engage the agitator shaft with the operating mechanism.

' After the current has been turned on, of course,

the ingredients will be properly frozen as in any ordinary freezer andafter proper time. has been allowed forthe freezing action, the freezeris removed and the head or cap 39 is removed with the agitating orstirring mechanism and there is substituted therefore a cap v which hasnotched lugs 61 similar to the lugs 42 of the cap 39 and then the casingmay be replaced in the compartment and stored therein as long asdesired.

It is thought that the construction, operation, utility and advantagesof this invention will now be clearly understood without a more detaileddescription thereof.

The present embodiment of the invention has been described inconsiderable detail merely for the purposes of exemplification since inactual practice it attains the features of advantage enumerated asdesirable in the statement of the invention and the above description.

It will be apparent that changes in the details of construction, and inthe combination and arrangement of parts may be resorted to'withoutdeparting from the spirit or scope of the invention as hereinafterclaimed or sacrificing any of its advantages.

Having thus described our invention, what we claim as new is:

A refrigerator comprising upper and lower coinpartznents, a motorlocated in the upper compartment, a shaft connected with the motor andpassing into the lower compartment, means for rotatably supporting theshaft, a horizontal shaft rotatably supported in the lower compartment,gears connecting the two shafts together, a' slotted socket headconnected to the horizontal shaft,

spring jaws supported in the lower compartment, and a container locatedin the lower compartment and having a projection thereon engaging thespring jaws when the container is placed in the compartment and beingreleased by the jaws when the container is removed from the compartment,an agitator in the container including a shaft passing through a wall ofthe container, said shaft enteringthe socket in the head when thecontainer is placed in the compartment and pins on the end of the shaftfor engaging the slots of the head when the shaft, enters the head.

' FRED SCHALJO.

JACK MILLER.

